:root {
  --bg-1: #020a0f;
  --bg-2: #010f14;
  --bg-3: #041b22;
  --accent: #2effaa;
  --accent-2: #008dff;
  --text: #f3fffb;
  --muted: #b8cec7;
  --glass-1: rgba(12, 26, 30, 0.9);
  --glass-2: rgba(7, 16, 18, 0.95);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 50% -8%, rgba(5, 150, 105, 0.55), transparent 42%),
    radial-gradient(circle at 78% 18%, rgba(0, 108, 255, 0.2), transparent 35%),
    linear-gradient(180deg, rgba(1, 15, 20, 0.72) 0%, rgba(1, 16, 12, 0.7) 40%, rgba(1, 10, 8, 0.96) 100%),
    linear-gradient(135deg, var(--bg-1), var(--bg-2) 50%, var(--bg-3));
  overflow: hidden;
}

#particles {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.card {
  position: relative;
  z-index: 1;
  width: min(94vw, 980px);
  padding: 2rem;
  border-radius: 24px;
  background: linear-gradient(160deg, var(--glass-1), var(--glass-2)) padding-box,
    linear-gradient(120deg, rgba(36, 211, 162, 0.48), rgba(0, 108, 255, 0.34)) border-box;
  border: 1px solid transparent;
  backdrop-filter: blur(12px);
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.5);
  animation: rise 1s ease-out both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(26px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.tag {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.23em;
  color: var(--accent);
}

h1 {
  margin: 0.75rem 0 0.75rem;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.1;
}

.cursor {
  display: inline-block;
  margin-left: 0.1em;
  color: var(--accent);
  animation: blink 0.8s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.description {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  max-width: 62ch;
}

@media (max-width: 640px) {
  .card {
    width: min(95vw, 980px);
    padding: 1.35rem;
    border-radius: 18px;
  }
}